135606542 has 8 divisors (see below), whose sum is σ = 207247896. Its totient is φ = 66523912.

The previous prime is 135606529. The next prime is 135606547. The reversal of 135606542 is 245606531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 135606499 and 135606508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135606547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 639548 + ... + 639759.

It is an arithmetic number, because the mean of its divisors is an integer number (25905987).

Almost surely, 2^135606542 is an apocalyptic number.

135606542 is a deficient number, since it is larger than the sum of its proper divisors (71641354).

135606542 is a wasteful number, since it uses less digits than its factorization.

135606542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1279362.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 135606542 is about 11645.0221983472. The cubic root of 135606542 is about 513.7599119965.

It can be divided in two parts, 13560 and 6542, that added together give a palindrome (20102).

The spelling of 135606542 in words is "one hundred thirty-five million, six hundred six thousand, five hundred forty-two".